test: disable pytest-randomly (for now)

setup.cfg

@@ -81,6 +81,7 @@ norecursedirs =
 # so you can see whether it gives you any performance gain, or just gives
 # you an overhead. See `docs/template/development-process.rst`.
 addopts =
+  -p no:randomly
   --strict-markers
   --strict-config
   --doctest-modules

tox.ini

@@ -6,9 +6,7 @@ envlist =
   py{38,39}-djangomain
 
 [testenv]
-allowlist_externals =
-  pytest
-  coverage
+allowlist_externals = pytest
 deps =
   django22: django ~= 2.2.0
   django30: django ~= 3.0.0
@@ -17,4 +15,3 @@ deps =
   djangomain: https://github.com/django/django/archive/main.tar.gz
 commands =
   pytest --cov {envsitepackagesdir}/eav
-  coverage combine